MockMate privacy policy

Effective date: 2026-08-12

What data MockMate accesses

MockMate reads the URL and HTTP method of fetch and XMLHttpRequest calls made by the web page in the current tab, solely to check whether a user-defined mock rule matches. Nothing else about the request is read: not its body, not its headers, not cookies or authentication tokens. The URL and method are processed in memory and are never stored or transmitted; they appear only in diagnostic messages printed to the browser's developer console.

When a request does not match any rule, it is sent to the network untouched and MockMate does not inspect the response.

What data MockMate stores

MockMate stores the following data locally on your device using the browser's built-in storage:

• Your mock configuration — route names, URL patterns, HTTP methods, and mock response data (status codes, headers, body text, delay values) that you enter manually in the extension editor. This is stored in chrome.storage.local and persists until you delete it or uninstall the extension. Because mock response bodies can be large, the extension declares the unlimitedStorage permission so that saving is not cut off by the browser's default 10 MB storage quota. This affects only how much data may be kept on your own device; it does not change what is stored or where.
• A per-tab on/off flag stored in chrome.storage.session, cleared automatically when the browser is closed.
• Your language and theme preferences, stored in chrome.storage.local and mirrored in the extension page's own localStorage so the extension pages render in the right language and theme without flicker.
• Interface layout values — the widths of the resizable panels on the options page — stored in the extension page's localStorage.

The extension can import and export a configuration as a JSON file. Both directions are started by you and stay on your device: importing reads a file you pick, exporting saves a file through the browser's normal download flow.

What data MockMate does not collect

MockMate does not collect, transmit, or share any personal data, browsing history, form inputs, cookies, authentication tokens, or any other information about you or the pages you visit. The extension makes no outbound network requests of its own.

Third parties

No data is shared with any third party. The extension has no back-end server, no analytics SDK, and no crash-reporting service.

Data deletion

You can delete individual routes and response variants inside the extension at any time. To remove everything at once, open chrome://extensions, click "Details" on MockMate and select "Clear data". Uninstalling the extension deletes all of its stored data as well.

Contact

Questions about this policy can be directed to: ivan.ushatsky@gmail.com